Dricus du Plessis will face Khamzat Chimaev for the middleweight UFC title. Here is the estimated ring walk time.

The middleweight championship is up for grabs at Saturday's UFC 319. Champion Dricus du Plessis will be putting the title on the line against top challenger Khamzat Chimaev in the night's main event.

UFC middleweight champion Dricus du Plessis will battle his opponent as well as what figures to be a hostile crowd when he defends his title against Khamzat Chimaev in the main event of UFC 319 at the United Center on Saturday.